@mixin multi-border-radius($topLeft: 5px, $topRight: 5px, $bottomRight: 5px, $bottomLeft: 5px) {
	-webkit-border-top-left-radius: $topLeft;
	-webkit-border-top-right-radius: $topRight;
	-webkit-border-bottom-right-radius: $bottomRight;
	-webkit-border-bottom-left-radius: $bottomLeft;
	-moz-border-radius-topleft: $topLeft;
	-moz-border-radius-topright: $topRight;
	-moz-border-radius-bottomright: $bottomRight;
	-moz-border-radius-bottomleft: $bottomLeft;
	border-top-left-radius: $topLeft;
	border-top-right-radius: $topRight;
	border-bottom-right-radius: $bottomRight;
	border-bottom-left-radius: $bottomLeft;
}

@mixin vertical-gradient($start: #000, $stop: #FFF) {
	background: ($start + $stop) / 2;
	background: -webkit-gradient(linear, left top, left bottom, from($start), to($stop));
	background: -moz-linear-gradient(center top, $start 0%, $stop 100%);
	background: -moz-gradient(center top, $start 0%, $stop 100%);
}

@mixin box-shadow($horizontal: 0px, $vertical: 1px, $blur: 2px, $opacity: 0.1) {
  -webkit-box-shadow: $horizontal $vertical $blur rgba(0, 0, 0, $opacity);
  -moz-box-shadow: $horizontal $vertical $blur rgba(0, 0, 0, $opacity);
  box-shadow: $horizontal $vertical $blur rgba(0, 0, 0, $opacity);
}
